The PASS CONTROL statement passes active controller capability to the specified IEEE-488 device. You specify either a device selector or an I/O Path. If an I/O Path is specified, it must be assigned to an IEEE-488 device. For example:
ASSIGN @Dev to 705
PASS CONTROL @Dev
If the computer is the active controller and a primary address is specified, control is passed to the addressed device. An error is generated if the computer is not the active controller or if only an interface select code is specified.
The specified device is talk addressed, a Take-Control-Message TCT is sent, and the Attention line is set false. The computer then becomes a bus device, as opposed to a bus controller.
